Azbil MagneW FLEX+ - 7: Installation on a PVC Pipe Using Non-SUS Grounding Ring Material

Azbil Corporation Installation
MagneW FLEX+/PLUS+ Electromagnetic Flowmeter Detector 2-39
2.5.7: Installation on a PVC pipe using non-SUS
grounding ring material
The installation methods described in this section are for installation on a PVC pipe
using non-SUS grounding ring material. For the installation method corresponding to
any other combination of materials, refer to Table 2-5 on page 2-12.
PTFE gaskets are provided for this type of installation. If you supply the gaskets,
Azbil Corporation recommends non-rubber gaskets such as joint sheet or PTFE.
When using rubber gaskets, gaskets of the same material with two dierent
thicknesses (0.5 to 1.0 mm (0.02 to 0.04 inch) and 3.0 to 4.0 mm (0.12 to 0.16
inch)) are required. See Table 2-3 on page 2-11 and Table 2-4 on page 2-11 for the
appropriate dimensions. See page 2-42 for installation using rubber gaskets.
CAUTION
The use of rubber gaskets and a lower fastening torque is not recommended and
can cause insucient surface pressure between the lining and the grounding ring,
resulting in leakage.
If tightening the bolts at the specied torque threatens to warp or damage the PVC
pipes, you will need to use a protective plate. See page 2-41 for installation of the
protective plate.